词汇量

In the study of second language acquisition, the research of vocabulary was attached importance until 1980s, but the focus was on vocabulary size ( the breadth of vocabulary) primely.

在二语习得研究中，对于词汇的研究直到20世纪80年代才受到重视，而研究初期主要是对于词汇量（词汇广度）的研究。

During the first week, all the participants were given the vocabulary level test and target vocabulary test, and aims and contents of this experiment were introduced.

第一周研究者对研究对象进行词汇量水平测试及目标词汇测试，同时向研究对象介绍本次实验的内容及目的。

Many studies demonstrate extensive reading can enhance incidental vocabulary learning, but students can only learn very limited vocabulary by free reading. In order to make up this shortcoming, many scholars suggest that adding annotations in reading material can enhance incidental vocabulary learning effectively.

大量研究表明，广泛的阅读能够促进词汇附带学习，但仅仅依靠自由阅读而学习到的词汇量很有限，为了弥补这一不足，许多学者提出了在阅读材料中添加生词注释来促进词汇附带学习。